How To Fix MA668 - No technical period generated for level-by-level planning

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 668

• Message text: No technical period generated for level-by-level planning

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MA668 - No technical period generated for level-by-level planning ?

  The SAP error message MA668 ("No technical period generated for level-by-level planning") typically occurs in the context of Material Requirements Planning (MRP) when the system is unable to generate a technical period for level-by-level planning. This can happen for several reasons, and understanding the cause is essential for resolving the issue.
  Causes:
  
  Missing Master Data: The relevant master data (like Material Master, BOM, or Routing) may not be correctly maintained or may be missing.
  Planning Parameters: Incorrect planning parameters or settings in the MRP configuration can lead to this error.
  Planning File Entries: The planning file entries may not be correctly set up or may be missing for the materials involved.
  Technical Period Settings: The settings for the technical period in the MRP configuration may not be defined correctly.
  Date Issues: The dates for the planning horizon may not be set correctly, leading to no valid periods being available for planning.
  
  Solutions:
  
  Check Master Data: Ensure that all relevant master data is correctly maintained. This includes checking the Material Master, BOM, and Routing for the materials involved.
  Review MRP Settings: Go through the MRP configuration settings to ensure that all parameters are set correctly. This includes checking the planning strategy and MRP type.
  Check Planning File Entries: Use transaction code MD21 to check the planning file entries for the materials. If entries are missing, you may need to run MRP again to generate them.
  Verify Technical Period Settings: Check the settings for the technical period in the MRP configuration (transaction code OMD0) to ensure they are defined correctly.
  Adjust Planning Horizon: Make sure that the planning horizon is set correctly in the MRP settings. You can adjust the planning horizon in the MRP view of the Material Master.
  Run MRP: After making the necessary adjustments, run the MRP again to see if the error persists.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD01 (MRP Run), MD02 (Single-item, Multi-level planning), and MD21 (Display Planning File Entries).
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation related to MRP and level-by-level planning for more detailed guidance on configuration and troubleshooting.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP support team or refer to SAP community forums for further assistance.